https://www.selleckchem.com/pr....oducts/ly2109761.htm
The presence of BALT and its size in humans largely depends upon age. It is detected in 35% of children less than 2 years of age, but absent in the healthy adult lung. Environmental gases or allergens may have an effect on the number of BALT. Lungs of rhesus macaque monkeys were screened by histology for the presence, size and location of BALT after exposure to filtered air for 2, 6, 12 or 36 months or 12 and 36 months to ozone or 2, 12 or 36 months of house dust mite or a combination of ozone and house dust mite for 12 months. In the